"The Met Office has put two amber and seven yellow alerts in place for Thursday, with chief forecaster Neil Armstrong describing the system as a multi-hazard event combining heavy rain, powerful winds and snowfall. Storm Goretti, which was named by the French meteorological service, has also been labelled a weather bomb by the Met Office as it strengthens quickly over the Atlantic before tracking towards the UK and France."
"The phrase weather bomb is an informal way of describing explosive cyclogenesis, a process in which a storm's core pressure plunges by at least 24 millibars within a 24-hour period. BBC Weather meteorologist Simon King explained that Storm Goretti comfortably meets this threshold, with forecasts showing pressure falling by around 36 millibars between 6pm on Wednesday and 6pm on Thursday."
Two amber and seven yellow alerts cover large parts of the UK for Thursday, signalling a multi-hazard storm combining heavy rain, powerful winds and snowfall. Amber warnings indicate gusts of 80–90 mph possible in parts of Cornwall, with large waves and flying debris posing a potential danger to life from Thursday evening. Wales and the Peak District could receive up to 30cm of snow overnight. Pressure is forecast to drop by about 36 millibars in 24 hours, meeting the explosive cyclogenesis threshold, driven by an accelerating jet stream that deepens the surface low and produces damaging winds. London and much of southeast England remain in yellow, not amber.
Read at www.standard.co.uk
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